Loading of servlet ...

Hi, I was just going thru the process of serving the client request by a JSP file, and during this I had few confusions: 1. When a JSP page is requested from a client, the JSP engine first looks for the servlet class for that JSP. If it is not there, it compiles the JSP page and creates a servlet class. Then it creates the instance of this servlet class and loads it in the web server.(Tell me if I am wrong somewhere). After this the JSPService method is called in which 'request and response' objects are passed. If in JSP, with the help of usebean tag, instance of Beans are created like in : <jsp:useBean id="email" class="com.folder.emailBean" scope = "sesseion" My question is: when actually this instance is created when the user requests for a page and does Web container creates this instance? 2. For different requests from the client, does the web container creates the different instances of servlet class. If not can somebody explains how it works? Thanks in advance shikhar